Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  f820bcb1bd15175691fcdf5ad636f5f24e9f62b2

Moving mobile notifications overlay to stable

Also fixing styling of archive link so that it lines up with
notifications in the overlay.

Also fixing flash of archive link in the overlay.

Also hiding notifications icon on the notifications archive page.
Change id to class

Change-Id: I27ab0d8c2ea7423956fa9bf88b48a75ce03b2ea9